Answer:
21.2 or 15 sqrt of 2 (PETHAGOREOM theorem)
Step-by-step explanation:
a^2+b^2=c^2
20^2+5^2=C^2
400+25=C^2
450=C^2
sqrt 450=
15 sqrt of 2 or 21.2
Answer: 0.47
Step-by-step explanation:
Answer:
The answer is option 4.
Step-by-step explanation:
You have to use Indices Law,


So for this question :






Step-by-step explanation:
80 times 2 is 160
Therefore, 100 times 2 is 200
You multiply the denominator and numerator by the same number.